# STC SA01775WI

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Duncan Aviation Inc, United States
- Description: Installation of Norwegian Special Mission UNIFIS 3000 Flight Inspection System
- Applied: September 9, 2014
- Status date: July 28, 2017
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A1WI](https://openairdocs.org/tcds/A1WI)
- Certificate PDF: https://openairdocs.org/files/sha256/4e/87/4e87763e51d7042d9e8413d2e7027e4580d804dfe40fd14d80963657607a3fcb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7DBDA907AF8E8C6A8625818E007AC53E.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA01775WI

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 525C ([TCDS A1WI](https://openairdocs.org/tcds/A1WI))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificat e may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47.

FAA Form 8110-2 (5/14) Page 1 of This certificate issued to:

Part of the

Signature

Title 3 SA01775WI Duncan Aviation, Inc.

3701 Aviation Road Lincoln, NE 68524 Federal Aviation Regulations * See Page 323* Installation of Norwegian Special Mission UNIFIS 3000 Flight Inspection System in accordance with (1) Duncan Aviation, Inc., STC Master Document List CERTDOC-0000001863, Rev. B dated June 17, 2015, (2) Duncan Aviation, Inc., FAA Approved Airplane Flight Manual Supplement CERTDOC-001950, Rev. A, dated June 17, 2015, or later FAA approved revisions to (1) or (2) The installer must determine whether this design change is compatible with previously approved modifications.

If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

(Limitations and Conditions continued on page 3) Todd A. Thomas ODA STC administrator, ODA-501013-CE Duncan Aviation, Lincoln, Nebraska Cessna Aircraft Company 525C July 28, 2017 September 9, 2014 June 17, 2015 A1WI

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificat e may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47.

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee) From (Name and address of grantor) Extent of Authority (if licensing agreement):

3 SA01775WI

This certificat e may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47.

FAA Form 8110-2 (5/14) Page 3 of

After modification per this STC, the aircraft operator must include the maintenance information in Duncan Aviation, Inc., Instructions for Continued Airworthiness CERTDOC-001952, Rev. B, dated June 17, 2015, or later FAA accepted revisions, in the operator's aircraft maintenance manual and the operator's aircraft scheduled maintenance program.

Certification Basis:

In addition to the 14 CFR Part 23 requirements, ELOS NO. ACE-08-04, Special Condition 23-102-SC and 23-145-SC as shown in TCDS A1WI, the applicant has voluntarily complied with the Sections of 14 Code of Federal Regulations, Part 23, effective February 1, 1965, as amended by the Amendments stated:

14 CFR Part Amendment

23.1306 23-61 -------E N D------ SA01775WI

## Every issue (2)

- July 28, 2017: Amended, Current. [certificate](https://openairdocs.org/files/sha256/4e/87/4e87763e51d7042d9e8413d2e7027e4580d804dfe40fd14d80963657607a3fcb)
- June 17, 2015: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/52/37/5237b409b05379afbb7389cabebeb8a418305df7610ec2e5a651555bb60f70e6)

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